Figure 3

Weekly mean low back pain intensity (scale from 0 to 9, with 0 as no pain within the last 7 days and 9 as worst pain imaginable) and mean hours of leisure time physical activity (time spent on activities like aerobics, running, bicycling, swimming and active transport) during the previous 7 days for the high responders, (those who responded more than 80%, n = 49). Time period was from Week 46 (November) 2008 to Week 45 (November) 2009 and each weekly dot covers 48 to 49 responses.